Measurement of H2CO hyperfine structure with a two-cavity maser

Stephen G Kukolich, D. J. Ruben

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

Hyperfine structure on the 110 → 111 rotational transition in H2CO was measured using a two-cavity maser spectrometer with 0.3 kHz resolution. The measured spin-rotation constants are C(110) = -0.80 ± 0.05 kHz and C(111) = -3.07 ± 0.05 kHz. The hydrogen spin-spin interaction strength is D = 17.74 ± 0.10 kHz. The line center is at 4 829 659.89 ± 0.12 kHz. Properties of the beam source and computer line resolving methods are discussed briefly.

Original languageEnglish (US)
Pages (from-to)130-135
Number of pages6
JournalJournal of Molecular Spectroscopy
Volume38
Issue number1
DOIs
Publication statusPublished - 1971
Externally publishedYes

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ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics

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